:root {
  --canvas: #f4f7fa;
  --panel: #ffffff;
  --ink: #15273b;
  --muted: #647488;
  --line: #e1e7ed;
  --hair: #edf0f3;
  --nav: #112236;
  --green: #147a68;
  --red: #b74c53;
  --mint: #e3f4ee;
  --mint-line: #b7dccd;
  --butter: #fbf3dc;
  --butter-line: #e8d9a6;
  --sky: #e6f0fa;
  --sky-line: #bfd4ea;
  --code: #f6f8fa;
  --font: 'DM Sans', system-ui, -apple-system, Segoe UI, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; background: var(--canvas); color: var(--ink); font-family: var(--font); font-size: 16px; line-height: 1.6; }
a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible { outline: 3px solid #48ae99; outline-offset: 3px; }
h1, h2, h3, h4 { letter-spacing: -0.03em; margin-top: 0; line-height: 1.25; }
h1 { font-size: clamp(1.8rem, 3vw, 2.5rem); font-weight: 700; margin-bottom: 10px; }
h2 { font-size: 1.35rem; font-weight: 700; margin: 44px 0 12px; padding-top: 8px; }
h3 { font-size: 1.05rem; font-weight: 700; margin: 28px 0 8px; }
p { margin: 0 0 14px; }
code { font-family: var(--mono); font-size: 0.875em; background: var(--code); padding: 2px 6px; border-radius: 4px; }
pre { background: var(--code); border: 1px solid var(--line); border-radius: 8px; padding: 14px 16px; overflow: auto; font-size: 0.85rem; line-height: 1.5; }
pre code { background: none; padding: 0; }
ul, ol { padding-left: 22px; margin: 0 0 14px; }
li { margin-bottom: 6px; }
strong { font-weight: 700; }
.muted { color: var(--muted); }
.eyebrow { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.lede { font-size: 1.1rem; color: var(--muted); max-width: 62ch; margin-bottom: 26px; }

/* Layout */
.top { background: var(--nav); color: #dce5ef; }
.top-inner { max-width: 1180px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.wordmark { display: flex; align-items: center; gap: 10px; color: #fff; font-weight: 800; letter-spacing: 0.06em; font-size: 0.9rem; }
.wordmark small { color: #9db0c3; font-size: 0.7rem; letter-spacing: 0.12em; font-weight: 500; margin-left: 6px; }
.wordmark:hover { text-decoration: none; }
.top-links { display: flex; gap: 18px; font-size: 0.875rem; }
.top-links a { color: #b3c4d5; }
.top-links a:hover { color: #fff; text-decoration: none; }

.wrap { max-width: 1180px; margin: 0 auto; padding: 36px 24px 80px; display: grid; grid-template-columns: 240px minmax(0, 1fr); gap: 48px; }
.side { position: sticky; top: 24px; align-self: start; font-size: 0.875rem; }
.side .group { margin-bottom: 22px; }
.side .group-label { font-size: 0.7rem; letter-spacing: 0.13em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; font-weight: 700; }
.side a { display: block; color: var(--ink); padding: 5px 10px; border-radius: 6px; border-left: 2px solid transparent; }
.side a:hover { background: #e9eff3; text-decoration: none; }
.side a.active { background: var(--mint); border-left-color: var(--green); color: var(--green); font-weight: 600; }
.side a.sub { padding-left: 22px; color: var(--muted); font-size: 0.82rem; }
main { min-width: 0; max-width: 780px; }

/* Blocks */
.callout { padding: 16px 20px; border-radius: 12px; margin: 24px 0; border: 1px solid var(--line); background: var(--panel); }
.callout .label { display: block; font-weight: 800; font-size: 0.8rem; letter-spacing: 0.04em; margin-bottom: 6px; }
.callout p:last-child { margin-bottom: 0; }
.callout.key { background: var(--mint); border-color: var(--mint-line); }
.callout.warn { background: var(--butter); border-color: var(--butter-line); }
.callout.note { background: var(--sky); border-color: var(--sky-line); }

table { border-collapse: collapse; width: 100%; font-size: 0.9rem; margin: 14px 0 22px; background: var(--panel); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
th { text-align: left; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); background: #f8fafb; font-weight: 700; }
th, td { padding: 11px 14px; border-bottom: 1px solid var(--hair); vertical-align: top; }
tr:last-child td { border-bottom: 0; }
td:first-child { font-weight: 600; white-space: nowrap; }
.num { font-variant-numeric: tabular-nums; }

dl.settings { margin: 0 0 20px; }
dl.settings > div { display: grid; grid-template-columns: 230px 1fr; gap: 16px; padding: 10px 0; border-bottom: 1px solid var(--hair); }
dl.settings > div:last-child { border-bottom: 0; }
dl.settings dt { font-weight: 600; font-size: 0.92rem; }
dl.settings dt small { display: block; color: var(--muted); font-weight: 500; font-size: 0.78rem; margin-top: 2px; }
dl.settings dd { margin: 0; color: var(--muted); font-size: 0.92rem; }

.states { display: grid; grid-template-columns: 120px repeat(3, 1fr); gap: 6px; margin: 16px 0 22px; font-size: 0.85rem; }
.states .hd { font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); font-weight: 700; padding: 6px 4px; align-self: end; }
.states .rl { font-weight: 700; padding: 10px 4px; display: flex; align-items: center; }
.states .cell { border-radius: 8px; padding: 10px 12px; border: 1px solid var(--line); background: var(--panel); min-height: 74px; }
.states .cell b { display: block; margin-bottom: 3px; }
.states .cell span { color: var(--muted); font-size: 0.8rem; line-height: 1.4; display: block; }
.states .up-strong { background: #dcefe8; border-color: #a9d4c3; }
.states .dn-strong { background: #f6dede; border-color: #e3b1b4; }
.states .up-faint { background: #eef7f3; }
.states .dn-faint { background: #faeeee; }
.states .counter { background: var(--butter); border-color: var(--butter-line); }

figure { margin: 22px 0 26px; }
figure svg { width: 100%; height: auto; display: block; background: #0b0e14; border-radius: 12px; border: 1px solid #1f2a36; }
figcaption { font-size: 0.82rem; color: var(--muted); margin-top: 8px; line-height: 1.5; }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; margin: 24px 0; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 20px 22px; }
.card h3 { margin-top: 0; }
.card p { color: var(--muted); font-size: 0.95rem; }
.card a.more { font-weight: 600; }

.foot { max-width: 1180px; margin: 0 auto; padding: 0 24px 40px; font-size: 0.8rem; color: var(--muted); border-top: 1px solid var(--line); padding-top: 20px; }
.toc-inline { font-size: 0.875rem; color: var(--muted); margin-bottom: 20px; }
.toc-inline a { margin-right: 14px; }

@media (max-width: 860px) {
  .wrap { grid-template-columns: 1fr; gap: 24px; padding-top: 24px; }
  .side { position: static; display: flex; flex-wrap: wrap; gap: 6px; }
  .side .group { display: contents; }
  .side .group-label { display: none; }
  .side a.sub { display: none; }
  .states { grid-template-columns: 90px repeat(3, 1fr); font-size: 0.78rem; }
  dl.settings > div { grid-template-columns: 1fr; gap: 4px; }
}